Example: Fit 2

XSPEC12>fit

XSPEC12>fit

Chi-Squared Lvl Par # 1 2
29.8056 -3 2.26963 363.61
==============================
Variances and Principal Axes
1 2
7.0008E-05| -1.0000 0.0002
3.1333E+05| -0.0002 -1.0000
------------------------------

========================
Covariance Matrix
1 2
1.931e-02 7.763e+01
7.763e+01 3.133e+05
------------------------

========================================================================
Model powerlaw<1> Source No.: 1 Active/On
Model Model Component Parameter Unit Value
par comp
1 1 powerlaw PhoIndex 2.26963 +/- 0.138945
2 1 powerlaw norm 363.610 +/- 559.763
________________________________________________________________________

Chi-Squared = 29.81 using 60 PHA bins.
Reduced chi-squared = 0.5139 for 58 degrees of freedom
Null hypothesis probability = 9.992190e-01
XSPEC12>